Accurate dimensional analysis

Critical dimensions

SensoINSPECT algorithms use sub-pixel resolution to detect the width of the strut. Critical Dimensions can be determined throughout the entire stent structure (CD Full analysis) or in previously defined areas of interest in the Stent Model Database (CD Regions analysis).

Dimensional analysis results are obtained with a repeatability of +/- 1% rms and +/- 3% PV. This information is superimposed onto the unrolled images with a green/red flag that indicates whether the dimensions are in or out of the accepted tolerance range, thus allowing immediate decisions to be made.


SensoINSPECT obtains immediate readings of the real size of stent sidewalls by measuring them at every position along the length of the struts displayed in the unrolled section (without applying any geometric correction)


SensoINSPECT software simultaneously identifies the edges of struts in unrolled images and uses dimensional analysis to provide an accurate assessment of the shape (roundness/sharpness) of these edges.

This kind of analysis can be also carried out throughout the complete stent structure (Edges Full analysis) or in individual areas of interest (Edges Regions analysis).


Defect detection and classification

Use the Q six to reduce time spent on tedious visual inspections. SensoINSPECT detects and classifies surface defects based on a customer-defined defect library and displays the position of each defect on a high-resolution unrolled image. Classification algorithms are easily trained from representative defect images stored in the library.


Simultaneous acquisition & analysis

Operators using the Q six in the assisted mode easily undertake accurate and reliable decisions in terms of acceptance. If necessary, the operator can immediately navigate back to any position on the surface to review dimensional results, observe potential defects in more detail using higher magnification objectives or even perform additional analysis using 3D modes. Stent Inspection Results will be transferred to the Production ERP, making the inspection process traceable.


3D Modes

Surface topography

Verify the depth of score marks or scratches of your stents. 3D Topography of a defect can be obtained in seconds with a lateral resolution of 0.5 microns and a vertical resolution of 1 nm.

Surface roughness

Check the quality of your electro-polishing process. Standard surface texture parameters are measured according to ISO 25178. The operator can select areas of measurement at the outer surface of the stent as well as filtering parameters.

Mapping the thickness of coatings

Check the performance of your process and coating uniformity. The thickness of optically transparent coatings is mapped all across the width of the struts with a lateral resolution of 0.5 microns and a vertical resolution of 2 nm in just a few seconds. The minimum value of the thickness that can be measured is approximately 2 microns.

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